Rod-packing.



V n. A. mmc'znn.

BOD PACKING APPLICATION III-B11001. 11, 1908.

Patented July 6, 1909,

' INVENTOR.

B y [dwardfiM kncjez' WITNESSES i To all whom it may concern:

are. 927,156.

' -UNITED STATES PATENT OFFICE.

EDWARD A 'MENCZER, OF K'ANsAsOrrY, MISSOURI, ASSIGNOR, BY MESNEASSIGNMENTS, P

To THE ENGINEERS SPECIALTY COMPANY, A CORPORATION OF'MIssOURI.

non-recruits.

Specification of Letters Patent,

' Beit. known that I, EDWARD MaNoznn, a CltlZGil of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented. certain new and useful Improvements 'in Rod-Packing;

and I do declare the following to be a full, clear, and exact .descrition of the invention,

such as will enable t ers skilled in the art to' which it appertainstomake and u'sethe, same, reference being had to the-accompanyingdrawings, and to the figuresof reference marked thereon, which form apart of this specification.

My 'nvention relates to metallic; packing ZEOI PIStOII and like rodswhichlwilleflectuof steam, orthe. like,

and has for its object to provide a packm ally prevent the escapgthrough the stuffing 'xes in which it is applied, without interferingwith .the operatio 0f the piston.

L A further object of my invention is to i provide a metallic packingwhich-maybe tightened to compensate for wear. i

In. acomplishing these objects, I have providedvthe improved details ofstructure presently described and illustrated in the accompanyingdrawings, in which;---- v FigureI'is a longitudinal sectional view ofa-stuifing box, equi ped with my improved packing. Fig. I 1.5 anenlarged sectional view of same, Fig. III is a perspective view of oneof the metallic packing rings .Fig. IVis a plan view of one oftheresilient packing members. I

Referring more in detail totheparts:-1 designates a stufiing box, havingthe rivetin flanges, 2, and 3 a gland that is" provided with a rivetingflange 4', such partsbeing of dinary construction and adapted forieration in the usual manner, the flanges cod 1. '2 and 4 being unitedby the tightening -'bolts 5.

' silient member, presently described,

In order to im art. stability to the meta 14 which is of substantiallyring and for-o er reasons, presently set orth, the ring body is ofgreater width at its exposed surface (numeral 10) than isthe free edgeof the flange 8, and the flange is of substantially greater diameterthan the ringbody, to provide for the peripheral groove and to "enable,a packing ring to cooperate with a mating. ring and ,With a resilientpackin member, when the parts .are 'assemble I 11 desi ates theresilient packing members whic are preferably composedbf rubher and havethe flat bases 12 and'convexly curved breasts 13, the'latter beingadapted to fit within peripheral grooves of the metal rings. At eachbase edge of the member 11 is a flange member 14 which projectsoutwardly a distance substantially equal to the width of the rin flange8, and projecting from the center 0 the breast. ortion is a lip as'theflanges 12. The rings 6- may be-cast of any diameter mm any particularstufling box. and; piston, so that by breaking the V strand 7 betweentwo of the ring sections, the ,ring may be placed-over the pistonrodand.

fitted into the box, the resilient members helatented July 6, 1909. i

e same width ing, if desired, formed .in convenient lengths and cut to,form the individual packing members.- I I In packing the rod, one of theresilient members 11 is split 1 longitudinally j and.

placed in the bottom of the stufling box with the edge flange 12projecting upwardly,

and the breast lip toward the box center One of the metal rings is thenfitted over the piston rod and moved into contact with the resilientmember so that the breast of the' latter will fit into the ring groovetoform a close .contact with the parts, the inner diameterof thering-being in close contact with the piston rod and a space 15 beingleft on the top of the ring body because of the lesser width of thebreast lip. A metal ring is and lowered and flange engagel like cedinring, 11 resi ient member is then place into. pos'tion and the packlngbuilt up in this manner until the chamber of the box has been until theflats'urface of its body contact of the grooved sides of the ringsbeingbroken b the resilient members and the lips 14, as il ustrated;

ortions of the profilled, the metal rings being in .contact, at theirextended surfacesfand the second then placed over the piston rod Byreason of, the breaksi'in the formed by the breast lips of the resilientmembers, we not only provide for expansion and contraction of the metal.rings, but also provide for lubrication, .oil may be received into therecesses 15 between the pack ing units during the operation of thepiston.

When the packing is first applied, the engine may be run for a shorttime without complete tigliitening of the gland in order to give thepacking an opportunity to set, after which the gland may be tightened bymeans of the bolts 5. After the packing has been in use for some time,should the rings wear or the parts become loosened, a further tighteningof the bolts 5 will restore the parts to their former condition,such-tighten,

'lDg being repeated, Whennecessary, without the necessity of removal ofthe gland or any part of the packing.

Having thusdescribed my invention, what I claim as new therein anddesire to secure by Letters-Patent is a 1a A rod packing comprising aring member havinga body portion adapted for en gagement with a pistonrod, and having a laterally projecting base flange,one face of saidringbeing flat andon the opposite face concaved, and a resilient member,having a fiat base adapted to seat against the inner surface of astuffing box and provided with a breast adapted to seat in the groovesof adjoining ring members, said resilient member being provided at itsbase with transverse flanges, and at the breast portion witha lip,substantially as and for the purpose- 'sct forth.

2. The combination with a stuiiing box and piston rod, of metallic ringmembers surrounding said rod' and provided with flat bases and withconcaved grooves on the sides opposite said bases, and relativelyresilient members seated against the stull'ing box and having breastsseated in the concaved grooves of ad oining rings, said resilientmembers being provided with breast -l-ips whereby adjoining rings areseparated 'llOlll each other, and with base flanges whereby said ringsare separated from the stuffing box.

silientmembers being provided with base flanges that separate the ringbases from the stuffing box and with breast lips that separate the ringsof ad acent pairs, said breast lips being narrower than the ring body toprovide lubricant grooves, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

EDWARD A. MENGZER. W'i tnesses MYRTLE M. Jaonsox, E. A. Carma

